Is the hydrogen industry actually marketable?

‌I heard Hyundai is producing hydrogen in Saemangeum
I'm not even sure if there's any marketability to it
If they're going to produce hydrogen, they should do it in Ulsan where the chemical plants are
I don't understand why they chose Saemangeum
The Saemangeum project is already a failed business
Half of it was lost during the Lee Myung-bak administration, and Lee Jae-myung lost another half this time
Now it's basically just a reclaimed tidal flat
If they have nothing else to do, they'll probably suggest building a casino
If there's nothing to build, returning it to a tidal flat might actually be a good idea, but we'll have to see